Topological Interference Management for K-User Downlink Massive MIMO Relay Network Channel
In this paper, we study the emergence of topological interference alignment and the characterizing features of a multi-user broadcast interference relay channel. We propose an alternative transmission strategy named the relay space-time interference alignment (R-STIA) technique, in which a K -u...
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| Format: | Article |
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MDPI AG
2017-08-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/17/8/1896 |
| _version_ | 1818001147118485504 |
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| author | Poongundran Selvaprabhu Sunil Chinnadurai Jun Li Moon Ho Lee |
| author_facet | Poongundran Selvaprabhu Sunil Chinnadurai Jun Li Moon Ho Lee |
| author_sort | Poongundran Selvaprabhu |
| collection | DOAJ |
| description | In this paper, we study the emergence of topological interference alignment and the characterizing features of a multi-user broadcast interference relay channel. We propose an alternative transmission strategy named the relay space-time interference alignment (R-STIA) technique, in which a K -user multiple-input-multiple-output (MIMO) interference channel has massive antennas at the transmitter and relay. Severe interference from unknown transmitters affects the downlink relay network channel and degrades the system performance. An additional (unintended) receiver is introduced in the proposed R-STIA technique to overcome the above problem, since it has the ability to decode the desired signals for the intended receiver by considering cooperation between the receivers. The additional receiver also helps in recovering and reconstructing the interference signals with limited channel state information at the relay (CSIR). The Alamouti space-time transmission technique and minimum mean square error (MMSE) linear precoder are also used in the proposed scheme to detect the presence of interference signals. Numerical results show that the proposed R-STIA technique achieves a better performance in terms of the bit error rate (BER) and sum-rate compared to the existing broadcast channel schemes. |
| first_indexed | 2024-04-14T03:30:50Z |
| format | Article |
| id | doaj.art-3c5304310e494a96a2a7839892b045b3 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-14T03:30:50Z |
| publishDate | 2017-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-3c5304310e494a96a2a7839892b045b32022-12-22T02:14:58ZengMDPI AGSensors1424-82202017-08-01178189610.3390/s17081896s17081896Topological Interference Management for K-User Downlink Massive MIMO Relay Network ChannelPoongundran Selvaprabhu0Sunil Chinnadurai1Jun Li2Moon Ho Lee3Department of Electronics and Information Engineering, Chonbuk National University, Jeonju 561-756, KoreaDepartment of Electronics and Information Engineering, Chonbuk National University, Jeonju 561-756, KoreaSchool of Mechanical and Electrical Engineering, Guangzhou University, Guangzhou 510006, ChinaDepartment of Electronics and Information Engineering, Chonbuk National University, Jeonju 561-756, KoreaIn this paper, we study the emergence of topological interference alignment and the characterizing features of a multi-user broadcast interference relay channel. We propose an alternative transmission strategy named the relay space-time interference alignment (R-STIA) technique, in which a K -user multiple-input-multiple-output (MIMO) interference channel has massive antennas at the transmitter and relay. Severe interference from unknown transmitters affects the downlink relay network channel and degrades the system performance. An additional (unintended) receiver is introduced in the proposed R-STIA technique to overcome the above problem, since it has the ability to decode the desired signals for the intended receiver by considering cooperation between the receivers. The additional receiver also helps in recovering and reconstructing the interference signals with limited channel state information at the relay (CSIR). The Alamouti space-time transmission technique and minimum mean square error (MMSE) linear precoder are also used in the proposed scheme to detect the presence of interference signals. Numerical results show that the proposed R-STIA technique achieves a better performance in terms of the bit error rate (BER) and sum-rate compared to the existing broadcast channel schemes.https://www.mdpi.com/1424-8220/17/8/1896K-user MIMO relay channelminimum mean square error (MMSE)interference alignmentlimited CSIR knowledge |
| spellingShingle | Poongundran Selvaprabhu Sunil Chinnadurai Jun Li Moon Ho Lee Topological Interference Management for K-User Downlink Massive MIMO Relay Network Channel Sensors K-user MIMO relay channel minimum mean square error (MMSE) interference alignment limited CSIR knowledge |
| title | Topological Interference Management for K-User Downlink Massive MIMO Relay Network Channel |
| title_full | Topological Interference Management for K-User Downlink Massive MIMO Relay Network Channel |
| title_fullStr | Topological Interference Management for K-User Downlink Massive MIMO Relay Network Channel |
| title_full_unstemmed | Topological Interference Management for K-User Downlink Massive MIMO Relay Network Channel |
| title_short | Topological Interference Management for K-User Downlink Massive MIMO Relay Network Channel |
| title_sort | topological interference management for k user downlink massive mimo relay network channel |
| topic | K-user MIMO relay channel minimum mean square error (MMSE) interference alignment limited CSIR knowledge |
| url | https://www.mdpi.com/1424-8220/17/8/1896 |
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